tree 71351cd3150e87a2d5a5c2ae06ea143e7345cf14
parent d0347b49c9a877a33c59f80de1a9dbabd5244205
author Kyle McMartin <kyle@shortfin.cabal.ca> 1203406474 -0800
committer Kyle McMartin <kyle@shortfin.cabal.ca> 1205633523 -0700

[PARISC] pdc_console: fix bizarre panic on boot

Commit 721fdf34167580ff98263c74cead8871d76936e6 introduced a subtle bug
by accidently removing the "static" from iodc_dbuf. This resulted in, what
appeared to be, a trap without *current set to a task. Probably the result of
a trap in real mode while calling firmware.

Also do other misc clean ups. Since the only input from firmware is non
blocking, share iodc_dbuf between input and output, and spinlock the
only callers.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>